/* Copyright (C) 2013-2021 TU Dortmund
 * This file is part of AutomataLib, http://www.automatalib.net/.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.automatalib.commons.util.comparison;

import java.util.Comparator;

/**
 * Lexicographical comparator.
 *
 * @param <T>
 *         iterable class
 * @param <U>
 *         element class
 *
 * @author Malte Isberner
 */
final class LexComparator<T extends Iterable<U>, U> implements Comparator<T> {

    private final Comparator<U> elemComparator;

    LexComparator(Comparator<U> elemComparator) {
        this.elemComparator = elemComparator;
    }

    @Override
    public int compare(T o1, T o2) {
        return CmpUtil.lexCompare(o1, o2, elemComparator);
    }

}
